See all current Thermo King truck, trailer, CR, DAS and DSR alarm codes. Alarm codes with parenthesis (XX) may exist with alarm code 84 and may clear automatically.
TK Alarm Codes
If it is not illuminated reset the timer for another 448 hours by pressing enter and 6-6 NESLAB ThermoFlex Thermo Scientific Section 6 then checking the Puralite periodically. If the Puralite has turned red and the controller alarm has not gone off, access the Diagnostic Loop unit display, ...